Acid sulphate process providing a malleable, shiny tin layer with excellent protective properties and solderability.
Electrolytic tin plating is an acid sulphate process that gives surfaces a malleable, highly shiny tin coating. Thanks to the innovative technology developed by ATOTECH, we offer high-quality coatings with excellent protective properties and solderability. Our method complies with RoHS and WEEE standards, ensuring safe and environmentally friendly solutions.
Electrolytic tin plating is an advanced galvanic process involving the application of a thin but durable layer of tin to the surface of metal using an acidic sulphate electrolyte bath. The process begins with precise cleaning and preparation of the surface, which includes degreasing, rinsing and chemical activation of the surface to ensure optimal coating adhesion.
The components are then immersed in an electrolytic bath, where the flow of electric current reduces the tin ions on the surface of the substrate. By controlling parameters such as current density, bath temperature and immersion time, it is possible to obtain a uniform, ductile and shiny coating of a precisely defined thickness.
The ATOTECH technology we use guarantees high coating quality, corrosion resistance and excellent solderability, which is particularly important in electronic assembly processes and other specialist applications. In addition, the process is environmentally friendly and complies with RoHS and WEEE standards, minimising its impact on the environment.
Electrolytic tin plating can be carried out both using the rack technique, in which the components are placed on racks, and the barrel method, which involves automatically rotating the components in a bath drum, allowing for the efficient processing of a large number of small components. Both techniques are widely used in the electroplating industry, which allows production to be adapted to various technical requirements and order sizes.
The production capabilities of the electrolytic tinning process include both the rack technique, ideal for larger and more complex parts, and the barrel method, which allows for quick and efficient tinning of many small parts at the same time. This enables us to fulfil orders of various sizes and part geometries while maintaining high quality of the tin coating. Our technological facilities allow us to flexibly adapt production to customer needs, both in smaller series and in mass production, ensuring the efficiency and repeatability of the process.
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